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TONTEK
TONTEK

TTP229-LSF Datasheet

16 KEYS OR 8 KEYS TOUCH PAD DETECTOR IC


TTP229-LSF Datasheet Preview


Preliminary
TTP229-LSF
TonTouchTM
16 KEYS OR 8 KEYS TOUCH PAD DETECTOR IC
GENERAL DESCRIPTION
The TTP229-LSF TonTouchTM IC is capacitive sensing design specifically for touch pad controls.
The device built in regulator for touch sensor. Stable sensing method can cover diversity conditions.
Human interfaces control panel links through non-conductive dielectric material. The main application
is focused at replacing of the mechanical switch or button. The ASSP can independently handle the 8
touch pads or up to 16 touch pads.
FEATURES
ƒ Operating voltage2.4V~5.5V
ƒ Built-in regulator
ƒ Stand-by current
At 3V, and sleep mode slow sampling rate 8Hz
=> Typical 2.5uA for 16 input keys
=> Typical 2.0uA for 8 input keys
ƒ Provides to set 8 direct keys or 16 direct keys by option
ƒ Provides to set 8 separate outputs only for 8 direct input keys mode
ƒ Has I2C-bus slave interface, both can use for 8 and 16 direct input keys mode
TTP229-LSF Slave Device Identifier and Address => [1010 111R]
ƒ 8 separate outputs can select output driving types by option
(CMOS/OD/OC with active high/low)
ƒ Offer multi-key or single-key feature by option
ƒ Provides two kinds of sampling rate that slow sampling rate 8Hz
and fast sampling rate 64Hz at sleep mode
ƒ Have the maximum key-on time about 80sec by pin option
ƒ Sensitivity can adjust by the capacitance(1~50pF) outside
ƒ After power-on have about 0.5sec stable-time,
During the time do not touch the key pad, and all functions are disabled
ƒ Auto calibration for environment changing
And the re-calibration period is about 4.0sec, when all keys are not activated for fixed time
APPLICATION
ƒ Wide consumer products
ƒ Button key replacement
本資料為通泰積體電路股份有限公司專有之財產,非經書面許可不准透露或使用本資料,亦不准複印、複製或轉變成任何其他形式使用
The information contained herein is the exclusive property of TONTEK and shall not be distributed, reproduced or disclosed in whole or in part without
prior written permission of TONTEK
10’/02/25
Page 1 of 18
Ver : 1.0
Free Datasheet http://www.Datasheet4U.com
Page 1

BLOCK DIAGRAM
SENADJ0
TP0
TP1
TP2
TP3
SENADJ1
TP4
TP5
TP6
TP7
Sense Port
and
Detecting
Circuit
SLPSENA
SLPSENB
Wake-up
Detecing
Control Circuit
TEST
Function Option
Control Circuit
Regulator
Circuit
Preliminary
Timing Counter
and
Key Scanning
and
Function Control
Circuit
System
Oscillator Circuit
System
Power On Circuit
TTP229-LSF
TonTouchTM
Output Buffer
&
Sense Input
Circuit
SENADJ2
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TP15
SENADJ3
SDO
I2C-bus interface
Control Circuit
SCL
SDA
PACKAGE CONFIGURATION
SLPSENA
TP3
TP2
SENADJ0
TP1
TP0
TP15
TP14
SENADJ3
TP13
TP12
SDA
SDO
SCL
1
2
3
4
5
TTP229-L
6 (SSOP-28)
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VSS
VDD
TP4
TP5
SENADJ1
TP6
TP7
TEST
TP8
TP9
SENADJ2
TP10
TP11
SLPSENB
本資料為通泰積體電路股份有限公司專有之財產,非經書面許可不准透露或使用本資料,亦不准複印、複製或轉變成任何其他形式使用
The information contained herein is the exclusive property of TONTEK and shall not be distributed, reproduced or disclosed in whole or in part without
prior written permission of TONTEK
10’/02/25
Page 2 of 18
Ver : 1.0
Free Datasheet http://www.Datasheet4U.com
Page 2

Preliminary
TTP229-LSF
TonTouchTM
PIN DESCRIPTION
Pin No. Pin Name Share Pin I/O Type
Pin Description
1 SLPSENA
I/O Sleep mode sensitivity adjustment pin for group-A(TP0~7)
2 TP3 SKMS1 I/O Touch pad input pin(KEY-3)
Key action function option-1(Single-key/Multi-key)
Default is all single-key
3 TP2 KYSEL I/O Touch pad input pin(KEY-2)
Key number function option(8-keys/16-keys)
Default is 8-keys
4 SENADJ0
I/O Touch pad TP0~3 sensitivity adjust common pin
5
TP1
SAHL
I/O Touch pad input pin(KEY-1)
Output type function option(Active High/Low)
Default is active-high for TPQ0~7
6 TP0 OPDEN I/O Touch pad input pin(KEY-0)
Output type function option(CMOS/OD/OC for 8-keys)
Default is CMOS
7
TP15
TPQ7 I/O/OD Touch pad input pin(KEY-15)
8-keys direct output pin(TPQ7)
8
TP14
TPQ6 I/O/OD Touch pad input pin(KEY-14)
8-keys direct output pin(TPQ6)
9 SENADJ3
I/O Touch pad TP12~15 sensitivity adjust common pin
10
TP13
TPQ5 I/O/OD Touch pad input pin(KEY-13)
8-keys direct output pin(TPQ5)
11
TP12
TPQ4 I/O/OD Touch pad input pin(KEY-12)
8-keys direct output pin(TPQ4)
12 SDA
I/OD Data pin for the I2C-bus serial data interface
13 SDO
14 SCL
O Data valid signal output, option active Low/High by TP1
I Serial clock input pin for the I2C-bus serial interface
15 SLPSENB
I/O Sleep mode sensitivity adjustment pin for
group-B(TP8~15)
16
TP11
TPQ3 I/O/OD Touch pad input pin(KEY-11)
8-keys direct output pin(TPQ3)
17
TP10
TPQ2 I/O/OD Touch pad input pin(KEY-10)
8-keys direct output pin(TPQ2)
18 SENADJ2
I/O Touch pad TP8~11 sensitivity adjust common pin
19 TP9 TPQ1 I/O/OD Touch pad input pin(KEY-9)
8-keys direct output pin(TPQ1)
20 TP8 TPQ0 I/O/OD Touch pad input pin(KEY-8)
8-keys direct output pin(TPQ0)
本資料為通泰積體電路股份有限公司專有之財產,非經書面許可不准透露或使用本資料,亦不准複印、複製或轉變成任何其他形式使用
The information contained herein is the exclusive property of TONTEK and shall not be distributed, reproduced or disclosed in whole or in part without
prior written permission of TONTEK
10’/02/25
Page 3 of 18
Ver : 1.0
Free Datasheet http://www.Datasheet4U.com
Page 3
Part Number TTP229-LSF
Manufactur TONTEK
Description 16 KEYS OR 8 KEYS TOUCH PAD DETECTOR IC
Total Page 18 Pages
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